Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Biancao9o3o12

  • 2 years ago

In set-builder notation, how do you write the solutions of the inequality? –2 – x ≥ – 1 (1 point) {x | x ≤ 1} {x | x ≥ 1} {x | x ≥ –1} {x | x ≤ –1} HELP >:(

  • This Question is Closed
  1. wio
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    You need to isolate x. The only tricky part is that if you multiply an inequality by a negative number, it flips.

  2. Biancao9o3o12
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    {x | x ≥ –1} ?

  3. wio
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    No, you didn't flip the inequality sign.

  4. Biancao9o3o12
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i DON'T get it :(

  5. wio
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Suppose you have \(-x \geq 4\), what happens when you multiply both sides by \(-1\)? You actually get \(x \leq -4\). This doesn't happen with \(=\) because it is sementric... but think about it this way: \[-x \geq 4 \rightarrow 0\geq 4+x\rightarrow -4 \geq x \rightarrow x\leq -4\]

  6. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.